WO2012046491A1 - Chaîne d'engrenage - Google Patents

Chaîne d'engrenage Download PDF

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Publication number
WO2012046491A1
WO2012046491A1 PCT/JP2011/066978 JP2011066978W WO2012046491A1 WO 2012046491 A1 WO2012046491 A1 WO 2012046491A1 JP 2011066978 W JP2011066978 W JP 2011066978W WO 2012046491 A1 WO2012046491 A1 WO 2012046491A1
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WO
WIPO (PCT)
Prior art keywords
chain
pair
meshing
distance
plates
Prior art date
Application number
PCT/JP2011/066978
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English (en)
Japanese (ja)
Inventor
佐治　智之
友男 須子
Original Assignee
株式会社椿本チエイン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社椿本チエイン filed Critical 株式会社椿本チエイン
Publication of WO2012046491A1 publication Critical patent/WO2012046491A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/18—Chains having special overall characteristics
    • F16G13/20—Chains having special overall characteristics stiff; Push-pull chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
    • B66F3/06—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F16H19/0636—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member the flexible member being a non-buckling chain

Definitions

  • the present invention is incorporated in a driving device that moves a driven object forward and backward with respect to an installation surface for use in manufacturing equipment in various manufacturing fields, transport equipment in the transportation field, care equipment in the medical and welfare field, stage equipment in the art field, and the like. It relates to the meshing chain.
  • the buckling strength of the structure is defined based on the Euler equation using the slenderness ratio specified by the second moment of the section of the structure as a parameter, and thus is relatively small like the above-described meshing chain. It is possible to take measures to avoid buckling of the meshing chain by connecting a plurality of link rows in the direction having the secondary moment of section to reduce the bias of the buckling strength of the meshing chain.
  • JP 2010-54005 A see paragraph [0032], FIG. 5
  • JP 2010-127396 A see paragraph [0028], FIG. 5
  • the chain of the entire meshing chain is increased by increasing the driving force applied to the bushing or the roller without increasing the contact area between the bushing or the roller inserted into the bushing and the driving sprocket without connecting a plurality of chains in the chain width direction.
  • thrust is increased, the contact pressure between the sprocket teeth of the drive sprocket and the bushing or roller increases, so that the bushing or roller is easily worn and damaged, reducing the durability of the chain.
  • the thrust of the entire meshing chain according to the contact stress between the bushing or roller provided between the plates constituting the chain and the drive sprocket depends on the number of rows of the chain. For example, even if the entire chain requires a thrust of 1.5 times the thrust acting on one row of chains, the chain is connected in two rows. There is a problem in that thrust exceeding the thrust required for driving the chain is applied to the meshing chain, and the number of parts of the chain is excessively increased to increase the part cost. Also, when the number of chain rows is increased in the chain width direction and buckling of the meshing chain is avoided, an intermediate plate is press-fitted between the chain rows to increase the chain strength. Similar to the case of acting on the chain, there is a problem in that the number of parts of the chain is increased and the cost of the parts of the chain is increased.
  • the technical problem to be solved by the present invention is to avoid buckling of the meshing chain, avoid an increase in parts and assembly costs and a decrease in assembly accuracy, and more than necessary. It is an object of the present invention to provide a meshing chain that realizes a smooth chain operation without increasing the number of chains and avoids an increase in chain maintenance cost and a decrease in chain durability.
  • an inner link unit formed by press-fitting a pair of front and rear bushes on a hook-shaped inner tooth plate that is spaced apart from each other on the left and right sides is disposed outside the inner link unit.
  • a large number of front and rear connecting pins that are press-fitted into a pair of front and rear pin holes of a hook-shaped external tooth plate arranged along the width direction of the chain are connected in the longitudinal direction of the chain, and the inner tooth plates facing each other are mutually connected.
  • the meshing chain driven by the drive sprocket so that the external tooth plates facing each other are meshed and integrated, and the internal tooth plates and the external tooth plates are respectively meshed and branched.
  • the distance between the plates of the internal tooth plate is larger than the distance between the pair of front and rear connecting pins, thereby solving the above-mentioned problem. That.
  • the invention according to claim 2 further solves the above-described problem in the meshing chain according to claim 1, wherein the distance between the plates is smaller than twice the distance between the pair of front and rear connecting pins. It is.
  • an inner link unit formed by press-fitting a pair of front and rear bushes to a hook-shaped inner tooth plate spaced apart from each other on the left and right sides is formed on the outer side of the inner link unit.
  • a pair of front and rear connection pins that are press-fitted into a pair of front and rear pin holes of a hook-shaped external tooth plate arranged along the direction, and face each other with the internal tooth plates facing each other.
  • the external tooth plates are meshed and integrated with each other, and are driven by the drive sprocket so that the internal tooth plates and the external tooth plates are respectively disengaged and branched, thereby making the meshing chain rigid and Not only can a branching operation be performed, but it is also possible to achieve special effects corresponding to the following unique configurations.
  • the meshing chain according to claim 1 is a rod-like member such as a bush that is passed between the pair of internal teeth plates because the distance between the pair of internal teeth plates is larger than the distance between the pair of front and rear connection pins.
  • the contact width between the drive sprocket and the bushing or the roller inserted in the bushing is increased closer to the distance between the plates, so it buckles in the chain width direction without increasing the number of rows of chains and the plate size.
  • the meshing chain according to claim 2 has a chain width in addition to the effect achieved by the meshing chain according to claim 1 because the distance between the plates is smaller than twice the distance between the pair of front and rear connecting pins.
  • the chain torsional moment of the chain is made closer to each other in the direction and the longitudinal direction of the chain to increase the chain strength, and the twist of the chain compared to the case where the distance between the plates is more than twice the distance between the pair of front and rear connecting pins.
  • the perspective view of the meshing chain type advance / retreat operation device incorporating the meshing chain according to the present invention is a partially enlarged view of the meshing chain type advance / retreat operation device shown in FIG. 1.
  • the meshing chain sectional view according to the present invention The perspective view which shows the meshing state of the meshing chain and drive sprocket which concern on this invention.
  • the front view which shows the meshing state of the meshing chain and drive sprocket which concern on this invention.
  • an inner link unit formed by press-fitting a pair of front and rear bushes to hook-shaped inner tooth plates spaced apart from each other on the left and right sides is disposed outside the inner link unit along the chain width direction.
  • a large number of front and rear connecting pins that are press-fitted into a pair of front and rear pin holes of the hook-shaped external tooth plate to be connected in the longitudinal direction of the chain, and the external tooth plates facing each other and the internal tooth plates facing each other Are driven by a drive sprocket so that the inner tooth plate and the outer tooth plate are separated from each other and branched, and the distance between the plates of the pair of inner tooth plates is Being larger than the distance between the pair of connecting pins avoids buckling of the meshing chain and increases the assembly and assembly costs.
  • the meshing chain of the present invention may be driven by a driving sprocket provided in a rigid position where a pair of meshing chains are integrally meshed, or disposed in a branch region where the pair of meshing chains branch from each other. It may be driven by a driving sprocket.
  • the meshing chain of the present invention may be driven by a driving sprocket that meshes with one of a pair of meshing chains that mesh with each other to be rigid, or is driven by two driving sprockets that mesh with the pair of meshing chains, respectively.
  • the meshing chain of the present invention may be any one not having a roller, that is, having only a bush, having a roller inserted into the bush, etc., but having only a bush.
  • the number of chain parts is reduced, and the weight of the chain can be reduced.
  • the interlocking chain type advance / retreat operation device equipped with the interlocking chain of the present invention does not interfere with the advancement / retraction operation regardless of whether the installation surface is a floor surface in a stationary installation form or a ceiling surface in a suspended installation form. Furthermore, there is no hindrance to the advancing and retreating operation described above even with a vertical wall surface in a cantilevered support form.
  • FIG. 1 is a perspective view of a meshing chain type advance / retreat operation device incorporating a meshing chain according to the present invention
  • FIG. 2 is a partial perspective view of the meshing chain type advance / retreat operation device shown in FIG. 3 is a partially enlarged view of the meshing chain type advance / retreat operation device shown in FIG. 1
  • FIG. 4 is an exploded perspective view of the meshing chain according to the present invention
  • FIG. 5 is a meshing according to the present invention.
  • FIG. 6 is a perspective view showing the meshing state of the meshing chain and the driving sprocket according to the present invention
  • FIG. 7 shows the meshing state of the meshing chain and the driving sprocket according to the present invention.
  • FIG. 8 is a perspective view showing a modification of the drive sprocket shown in FIG.
  • a meshing chain type advance / retreat operation device 300 incorporating a meshing chain 100 according to the present embodiment is installed in a stationary state on a work floor to drive a driven object such as a heavy object (not shown). ) Is lifted and lowered in parallel with the installation surface G such as a lifting table.
  • the meshing chain type advance / retreat operation device 300 is parallel to the base plate 320 and the base plate 320 installed on the installation surface G on which the transported object support unit 310 moves up and down in parallel.
  • a drive motor 340 that transmits power via the motor-side sprocket 341 and the power transmission chain 342, and the pair of meshing chains 100, 100 are arranged in the crotch region at the deflection position of the pair of meshing chains 100, 100 and guide the pair of meshing chains 100, 100 to each other.
  • a chain storage means 370 comprising a take-up type chain storage box 371 that winds and stores one of a pair of meshing chains 100 and 100 that are separated from each other and branch off from each other. It is provided as a configuration, and a transported object support unit 310 on which a driven object such as a work is mounted is directly supported by a pair of meshing chains 100 and 100 and moved up and down.
  • the pair of meshing chains 100, 100 described above are arranged in two sets on the left and right with respect to the conveyed product support portion 310, and are in a so-called two-protruding state.
  • the pair of meshing chains 100, 100 respectively disposed on the left and right sides of the transported object support unit 310 bisects the total load including the mounted driven object and divides the load. It is designed to move up and down in a self-supporting state with reduced sharing.
  • the drive sprocket 330 is provided at a rigid position where the pair of meshing chains 100, 100 are integrally meshed, and is attached to one bushing 102 of the pair of meshing chains 100, 100.
  • the pair of meshing chains 100 and 100 are driven by meshing. That is, when the driving sprocket 330 and the meshing chain 100 exhibit a so-called pinion rack mechanism, the meshing chain 100 is wound around the driving sprocket 330 at a deflection position that is deflected and driven from the chain branching direction to the chain meshing direction.
  • the meshing chain 100 includes an inner link unit in which a pair of front and rear bushes 102 are press-fitted into a pair of left and right hook-shaped inner teeth plates 101. 103 in the longitudinal direction Y of the chain by a pair of front and rear connecting pins 105 press-fitted into a pair of front and rear pin holes of a hook-like external tooth plate 104 arranged along the chain width direction X on the outside of the inner link unit 103.
  • a large number of the internal tooth plates 101 that are connected to each other and the external tooth plates 104 that face each other are meshed and integrated, and the internal tooth plates 101 and the external tooth plates 104 are respectively meshed and removed.
  • the pair of meshing chains 100, 100 are made rigid and It is adapted to perform branch operations.
  • the inter-plate distance W between the pair of internal teeth plates 101 is larger than the distance P between the pair of front and rear connecting pins, so that the bushes 102 passed between the pair of internal teeth plates 101 are chained.
  • the width direction X and the chain longitudinal direction Y the difference in the second moment of the cross section of the chain is reduced, the chain strength is made uniform, and the distance W between the pair of internal tooth plates 101 is the distance P between the pair of front and rear connecting pins P.
  • the contact width between the drive sprocket 330 and the bushing 102 is increased closer to the inter-plate distance W, so that it is easy to buckle in the chain width direction X without increasing the number of chains and the plate size.
  • the cost of the chain parts And the entire chain thrust acting on the chain from the driving sprocket 330 to the above-mentioned contact width without increasing the surface pressure acting on the bushing 102 from the sprocket teeth 332 of the driving sprocket 330. Accordingly, the chain is continuously increased to realize smooth chain operation, and wear and breakage of the bushing 102 are reduced to avoid an increase in chain maintenance cost and a decrease in chain durability.
  • the distance W between the plates is smaller than twice the distance P between the pair of front and rear connecting pins, so that the cross-section 2 of the chain is mutually in the chain width direction X and the chain longitudinal direction Y.
  • the breakage of the parts such as the bush 102 is further avoided, so that an increase in chain parts and manufacturing costs and a decrease in assembly accuracy are further avoided, and an increase in chain size is avoided and smooth.
  • the driving sprocket 430 having a shape that is a combination of two sprockets each having sprocket teeth 432 is used to drive compared to the case where one driving sprocket 430 is used. It is possible to increase the area where the sprocket 430 and the bush 102 are actually meshed with each other, and the surface pressure can be reduced to prevent the chain from being worn.
  • the distance W between the pair of inner tooth plates 101 is larger than the distance P between the pair of front and rear connecting pins, so that it is passed between the pair of inner tooth plates 101.
  • a rod-like member such as a bushing 102 that is longer than the inter-plate distance W between the pair of internal tooth plates 101 reduces the difference in the second moment of the chain in the chain width direction X and the chain longitudinal direction Y, thereby increasing the chain strength mutually.
  • the number of rows of the chain and the plate Avoid chain structures that tend to buckle in the chain width direction X without increasing the size From the drive sprocket 330, the buckling strength of the chain 100 is increased, the cost of parts of the chain is increased and the assembly accuracy is prevented from decreasing, and the surface pressure acting on the bushing 102 from the sprocket teeth 332 of the drive sprocket 330 is not increased.
  • the chain thrust acting on the chain is continuously increased according to the contact width described above to realize smooth chain operation and reduce wear and breakage of the bushing 102 to increase chain maintenance cost and decrease chain durability. The effect is enormous.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

Cette invention concerne une chaîne d'engrenage qui permet d'éviter le gauchissement, l'augmentation du coût des pièces et du coût d'assemblage et la réduction de la précision d'assemblage, tout en permettant d'atteindre un fonctionnement régulier de la chaîne sans augmenter de manière superflue le nombre rangées de la chaîne, et en évitant l'augmentation du coût d'entretien de la chaîne et la réduction de sa durabilité. Dans une chaîne d'engrenage (100), plusieurs unités de maillons internes (103) sont accouplées dans le sens longitudinal (Y) de la chaîne par une paire de broches de connexion avant et arrière (105) adaptées par pression dans une paire de trous de broche avant et arrière de deux plaques dentées extérieures (104). Des plaques dentées intérieures (101) opposées et les plaques dentées extérieures (104) opposées sont mises en prise les unes avec les autres en vue de leur intégration et dégagées les unes des autres en vue de leur embranchement. La distance (W) séparant les plaques d'une paire de plaques dentées intérieures (101) est supérieure à la distance (P) séparant la paire de broches de connexion avant et arrière.
PCT/JP2011/066978 2010-10-05 2011-07-26 Chaîne d'engrenage WO2012046491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010225823 2010-10-05
JP2010-225823 2010-10-05

Publications (1)

Publication Number Publication Date
WO2012046491A1 true WO2012046491A1 (fr) 2012-04-12

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PCT/JP2011/066978 WO2012046491A1 (fr) 2010-10-05 2011-07-26 Chaîne d'engrenage

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005337346A (ja) * 2004-05-26 2005-12-08 Daido Kogyo Co Ltd プッシュチェーン動力伝達装置
JP2010208765A (ja) * 2009-03-09 2010-09-24 Tsubakimoto Chain Co 昇降駆動用噛合チェーン

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005337346A (ja) * 2004-05-26 2005-12-08 Daido Kogyo Co Ltd プッシュチェーン動力伝達装置
JP2010208765A (ja) * 2009-03-09 2010-09-24 Tsubakimoto Chain Co 昇降駆動用噛合チェーン

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